Sunday River Resort | 2,348 followers on LinkedIn. Find Your Happy Place | Sunday River is located minutes from picturesque Bethel Village in Western Maine's Mahoosuc Mountains. A true four-season destination, the Sunday River Resort offers eight interconnected peaks of world class skiing and snowboarding, two Resort Hotels with conference space for 10 to 500 people, and golf at the acclaimed Sunday River Golf Club. Sunday River is a member of the Boyne Resorts family.